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United States Patent | 5,059,174 |
Vaillancourt | October 22, 1991 |
The pump of the infusion delivery system delivers fluid at a positive pressure. A restrictor is provided in the line to the IV catheter in order to maintain a flow rate at the catheter outlet in a range of from 0.1 to 5 milliliters per hour. The small amount of fluid infused is sufficient to maintain the vein open without backup of blood.
Inventors: | Vaillancourt; Vincent L. (14 Bunyan Dr., Livingston, NJ 07039) |
Appl. No.: | 572696 |
Filed: | August 23, 1990 |
Current U.S. Class: | 604/82; 128/DIG.12; 604/131 |
Intern'l Class: | A61M 037/00 |
Field of Search: | 604/82,131,134,135,154,151 128/DIG. 12 |
4298000 | Nov., 1981 | Thill et al. | 604/135. |
4755172 | Jul., 1988 | Baldwin | 604/131. |
4785799 | Nov., 1988 | Schoon et al. | 128/DIG. |
4842576 | Jun., 1989 | Lysaght et al. | 604/131. |